How did picaresque novels portray Spanish society?

In Spanish literature, the picaresque novel served as a powerful vehicle for social critique by utilizing the perspective of a pícaro—a lowborn, cynical outsider—to navigate and expose the various strata of society.1

Because the pícaro drifts between different social classes and professions to survive, his narrative functions as an ironic and satirical survey of the era's prevailing hypocrisies and corruptions. These novels portrayed Spanish society as a place where:1

• Hypocrisy was rampant: Characters in positions of authority, including clergy and lay masters, often masked their dubious moral character behind a facade of social respectability.1
• Social codes were performative: The pícaro typically felt unrestrained by societal mores, conforming to them only when it served his own survival or personal ends.1
• Realism was essential: By detailing the lives of those in humble or low walks of life, these works provided a rich, realistic observation of industries, professions, and the stark realities of poverty.1

Ultimately, the genre used the rogue's detachment to hold a mirror to the moral failings of the time, establishing realism as a dominant trend in the Spanish novel.1